Suction cleaning apparatus



Oct. 17, 1933. E. F. MARTINET 1,9

SUCTION CLEANING APPARATUS Filed Jan. 7, 1929 Jim" Patented Oct. 17,1933 PATENT OFFIICE 1,931,165 SUCTION CLEANING APPARATUS Eugene F.Martinet, Cleveland, Ohio, assignor to The P. A. Geier Company,Cleveland, Ohio, a

corporation of Ohio Application January 7, 1929. Serial No. 330,783Claims. (01. 167-3) My invention relates to suction cleaning apparatus,and more particularly to an attachment whereby the air currents may bedisinfected or made the carrier of a volatile reagent. The 5 object ofmy invention isto provide a suitable attachment for impregnating the aircurrents of a suction cleaner, either while dust-charged or freerunning, with the desired volatile substance. A secondary object is theprovision of an attachment of compact structure that may be renderedinactive at pleasure.

Suction cleaning apparatus not infrequently must be operated forcleaning sick-rooms and hospitals, hence a suitable disinfectingattachment of simple and cheap construction is a desirable and sanitaryadjunct. Moreover, in cleaning closets, and the like, it is equallydesirable to destroy any insect life, and the use of a suitable volatilereagent is indicated. At times it is desirable to use a reagent renderedeffective by moderate heat, and intermittently operative heating meansalso are indicated for such contingencies.

Accordingly, I have devised a simple, cheap and eflicient attachmentadapted to be interposed between the nozzle device and the fan casing ofa suction cleaner, which may be used for various more or less volatilereagents, either at normal or elevated temperatures, to impregnate sothe air currents when and as desired. The features of my improvement maybest be explained in connection with the accompanying drawing showing apreferred embodiment of my improvement, wherein: b

Figure 1 is a view in elevation of a suction cleaning device equippedwith my improved impregnating attachment;

Fig. 2 is an enlarged view of the attachment proper, shown partly .insection; heating means 40 being diagrammatically indicated therein:

Fig. 3 is a top view of the attachment with the adjustable coverremoved;

' Fig.4 is a front view of the attachment and cover;

Fig. 5 is a vertical section on line 5-5,' Fig. 4,

including the front wall' of the fan casing, and

Fig. 6 is a top view of the attachment showing the air-controllingslide.

Throughout the several figures of the drawing I-have employed the samecharacters of reference to indicate similar parts. I

A standard type of portable suction cleaning apparatus is shownin Fig.1, and includes a fan housing or suction compartment b in which a powerdriven fan of the usual type is located, a

motor casing a enclosing a usual motor for operating the fan, and asuction nozzle c1 forming an air inlet communicating with the suctionside of the fan casing. The motor casing a, the fan housing b, and thesuction nozzle 0 are all mounted upon wheels d. A discharge conduit orduct leads from the fan. housing '1; and has a usual dust bag bconnected thereto. No detailed description of these parts is necessaryinasmuch as the apparatus is typical of numerous approved forms ofsuction sweepers.

The improved germ destroying and disinfecting attachment e, whichprovides an auxiliary air inlet on the suction side of the fan chamberfor supplying an auxiliary stream of 'air into the stream drawn throughthe nozzle 0, is interposed a bayonet joint being shown at c' in Figs. 4and The annular body of the attachment (Fig. 2), is preferably die-castand includes a laterally positioned receptacle e having a perforatedbottom wall e, the perforations of which provide outlet passages fromthe receptacle e communicating with the suction passage leading from thesweeper nozzle to the suction compartment or fan housing b.

The central transverse opening e3 of the at-'- tachment e forms an airduct which registers with the suction duct openings in the fan housing band. nozzle 0 of the suction cleaner, while two lateral openings e4 anda bottom opening e5 may be provided in the body of the attachheat forvolatilization may sometimes be used,

so that electric heating elements, each comprising an insulating core 9and a resistance winding g controlled by a switch 9', are inserted in 5he openings e4, for heating the attachment 0 adjacent to the receptaclee' to volatilize the reagent contained therein.

The receptacle 6 is preferably provided with a removable perforatedsheet metal cover -f, whose perforations provide inlet passages from theatmosphere to' the receptacle (Figs. 46). A slide ,f' is also mounted onthe attachment and is provided with perforations adapted to registerwith the cover perforations so as to cover perforations.

-' When the perforations in the slide 1' do not register with thecorresponding perforations in the cover f, the improved attachment isinoperative and will not supply an auxiliary stream of air impregnatedwith the selected reagent to the suction side of the fan, but thesuction cleaning apparatus will be operated in the usual manner.However, if the regulating slide j is shifted so that its perforationspartially or entirely register with those in the cover I (Fig. 5), acorrespondingly varying amount of air will be drawn by the suction ofthe sweeper through the perorations into the receptacle e and in contactwith the reagent contained therein so as 'to impregnate the air currentswith the volatile products of the reagent utilized. This auxiliarystream of impregnated air passes from the re- :eptacle e' through theoutlet perforations formed in the perforated bottom 6'', through the fanchamber and into the dust bag b where the dust is separated from the aircurrents and is.held in the dust bag while the air escapes hrough thedust bag walls.

Meanwhile, the volatile reagent reacts to render the dust laden air andthe contents of the dust bag antiseptic, and the air escaping from thedust bag is still charged with the volatile products of the reagentemployed so as to impregnate the surrounding atmosphere with the 7 sameand purifying the atmosphere.

The operation of treating the matter collected by the suction cleaningapparatus, or the surrounding atmosphere, is accomplished withoutaffecting the suction cleaning function because the opening e3 in theattachment e substantially registers with the adjacent openings in thefan casing and nozzle and does not im- )air the operation of the suctioncleaner. However, if at any time it is desired to remove the attachmentfrom the suction cleaning appara his, the same may be' readilyaccomplished by removing the three screws e6 so as to release fanhousing b.

erve as a regulating or cut off valve for the- Having now described thepreferred embodiment of my invention, I claim as new and desire tosecure by Letters Patent, the following:

1. In combination, a suction cleaner including a power driven fan, a fanhousing, and a nozzle, and an attachment interposed between said fanhousing and nozzle, having an air duct registering with the suction ductopenings of the fan housing and nozzle and a receptacle having inletpassages and outlet passages communicating with-said air duct adapted tosupply an auxiliary stream of air to said air duct.

2. In combination, a suction cleaner including a power driven fan, a fanhousing, and a nozzle communicating with the suction side of said fan,and an attachment interposed between said fan housing and nozzle, havingan air duct registering with the suction duct opening of the fan housingand with the suction duct leading from said nozzle, and a receptaclehaving inlet passages and outlet passages communicating with said airduct adapted to supply an auxiliary stream of air to said air duct.

3. In combination, a suction cleaner including a power driven fan, a fanhousing, and a nozzle communicating with the suction side of said fan,and an attachment interposed between said fan housing and nozzle, havingan air duct registering with the suction duct opening of the fan housingand with the suction duct leading from said nozzle, a receptacle havinginlet passages and outlet passages communicating with said air ductadapted to supply an auxiliary stream of air to said air duct, and meansfor regulating the flow of air through said receptacle to said air duct.

4. In combination, a suction cleaner including a power driven fan, a fanhousing, and a detachable' nozzle, and an attachment interposed betweensaid fan housing and nozzle, having an 115 ,air duct registeringwith'the suction duct open ings of the fan housing and nozzle, areceptacle having inlet passages and outlet passages communicating withsaid air duct adapted to supply an auxiliary stream of air to said airduct, and means for regulating the flow of air through said receptacleto said air duct.

5. In combination, a suction cleaner including a power driven fan, a fanhousing, and a nozzle, and an attachment interposed between said fanhousing and nozzle, having an air duct registering with the suction ductopenings in the fan housing and nozzle, a receptacle having inletpassages and outlet passages communicating with said air duct adapted tosupply an auxiliary stream of air to said air duct, means for regulatingthe flow of air through said receptacle to said air duct, and means forheating the contents of the receptacle.

136 EUGENE F. MARTINET.

